Hi everyone, here is the issue I have.

I am working with the AT91SAM9263-EK board and am trying to install a handler using the Advanced Interrupt Controler. The AIC is mapped at the address 0xFFFF F000 and I am able to write to the the AIC_SMR and AIC_SVR register but when I try to enable the interrupt, AIC_IECR seems not to be writable and its value always stays at 0x0000 0000. I had a look at the CPSR and interrupts are not disabled ... ideas are welcome.

Have a good day

Jonathan

OK ... I know why actually. The AIC_IECR is non readable. The value given to AIC_IECR is transfered in AIC_IMR, and this register IS readable.

Jonathan